Flush-tank-valve mechanism



Patented Mar. 23, 1926.

STATES PATENT OFFICE.

JACOB S. KA'IZIN, 0F NEWARK; NEW JERSEY, ASSIGNOR 0F ONE-HALF TO MORRIS MANDELSTEIN, 0F NEWARK, NEW JERSEY.

FLUSH-TANK-VALVE MECHANISM.

Application filed April 17, 1925.

To a 107mm. 1'25 mu, comm/71,.-

Be it known that I, JAcon S. KivrziN, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in l lush lauk- Valve Mechanisms, of which the following is a specification.

This invention relates to valve mechanism and more particularly to devices of that character adapted for use in connection with flush tanks and the like.

Among the objects of this invention is to provide a ,novel valve structure adapted for long wear and to be constructed at low cost for efli-cient and reliable use particularly in connection with flush tanks and the Another object of this invention is to provide a flush tank or analogous structure comprising a valve for a rapid and efficient discharge of a fluid from said tank, and novel means for actuating said valve in the manner and for the purpose usually associated in connection with flush tanks.

With the foregoing and other objects in view the invention consists in the arrange ment and combination of parts hereinafter described and claimed, and While the in vention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings in which like reference characters designate the same parts in the several views, and in which Figure 1 is a cross section of a flush tank showing my invention mounted for use therein.

Fig. 2 isan enlarged detail view with parts in section showing certain of the main features of the valve mechanism.

7 Fig. 3 is an enlarged plan view showing the valve and operating mechanism.

Referring now more particularly to the drawings, I show a fluid container or flush tank 10 having an outlet 11 through a large radius elbow or the like. Mounted at the bottom of the tank is a valve device having a high flow capacity when opened to permit of a rapid discharge of the fluid from said tank. Said device includes a frusto-conical valve 12 arranged to seat within a frusto-conical seat 13, said valve being provided with a plurality of coaxial ring portions 14 to con Serial No. 23,782.

tact the sides of said seat, the remainder of the valve between said ring portions hcmg recessed so as to lie in'spaced relation to the sides of said seat when the valve is closed. /In this way an annular space 15 is provided between the valve and the seat wherein such matter is temporarily received as would otherwise prevent a proper seating of the valve. When, however, the valve is opened, the rapid flow of water thcrearound will clean the valve completely. In this way the wear upon the valve is materially reduced, since the seating surface of the valve is not subject to the scraping action that occurrs in the usual type of valve. Moreover, since the ring or seating portions of said valve are located wholly at the ends of the valve, the actual seating surface thereof is maintained at a minimum and the stability of the valve due to the length thereof axially permits of a reliable and eflicient seating of the valve.

An overflow 16 is provided which communicates with the tank outlet as by means of a connection 17 which discharges through the port 18 into the valve mechanism below the seating surface. Thus said overflow is operative when the valve is closed as shown. An integral casting can be provided for the sake of simplicity, one portion of which provides the valve seat, said casting comprising the lateral branch or inlet 17 into which the overflow pipe is threaded. Said casting is provided in a conventional manner with a flange 19 beneath which is placed a gasket 20, an integral nipple 21 extending through the bottom of the tank to co-o-perate with the lock nut 22 to make the connection with the tank fluid tight, the elbow 11 being connected to the extending portion of said nipple.

Said valve is supported in a suitablemanner for movement preferably in a vertical direction under the influence of gravity. The valve is constructed so as to float when once it has been opened until the water is discharged whereby the valve will automatically seat itself. When the tank is filled again, however, the downward pressure of the water is sufficiently great to overcome the buoyancy of the valve and retain the same in seated position. Specifically, I pro .vide a hollow valve and to add to the buoyancy of the same I cause a float to 'cooperate with said valve. In the preferred enilmiliment. of my invention the valve 12 takes the form of a hollow .i'rusto-conical member or ring as shown in Fig. 2, which is of sutticient stitt'ness to be properly ground for an etl'ective fluid tight seating,

Heat is for the sake of simplicity open at the bottom thereof, the buoyancy, of the float being unaffected thereby.

Secured at-the apex of the float is a nut 27 having a conical flange 28 to receive the end of the float. A red 29 is threaded into said nut and supports the combined Heat and valve in vertical axial position. Means is provided for guiding said rod, said means taking the form of a collar 30 which is mounted upon the overflow tube as by means of a set screw 31. Said collar comprises a split shank portion 82 and a nut 33 which is arranged so as to draw the portions of said shank toward each other to grip a screw 34 orthe like which is threaded into said shank against rotation to prevent accidental change in the setting thereof. Said screw terminates in a head 35 which is bored to receive the rod 29 to provide, a guide therefor when the valve is opened or closed. It is seen that a universal adjustment is provided for the guide in that the same can be set at any vertical or horizontal position for the proper centering of the valve in its seat and for the proper adjustment of the operating mechanism.

Levermechanism is provided to co-operate with said rod to lift the valve, said mechanism including a handle 36 which is operative to cause an oscillation of the arms 37 as by means of the connecting shaft 38 which is journaled within the sleeve 39. \Vhen the handle-is turned, a lever 40 which is pivoted at 41 is caused to tilt upwardly at the free end thereof and to lift the rod 29 as by means of a link 42 having pivotal connection with said free end of the lover. The link 42 has a free sliding connection with the rod to permit the valve operating mechanism to return to normal osition after the valve has been lifted to ischarge the water, while the valve continues floating until it gradually drops back into its seat at the water level falls. Thus the link comprises an eye 43 while the rod comprises means or engaging said eye in a downward direction only, such as the hook 4- A spring 45 which is mounted upon the nut 27 is adapted to abut against the head 35 to limit the upward lift of the valve.

It will be understood that this inventicm is applicable to a wide variety of uses and that the valve is capable of functioning in many places where valves are used which must for one reason or another he of particularly light construction.

The valve mechanism set forth herein is a frusto-conical valve seat within which said valve is arranged to seat and with the rin portions thereof alone in contact with said seat, and means for mounting said valve axially of said seat and to permit the same to be lowered thereinto through the operation of gravity upon the valve.

2. In a flush tank, the combination of a hollow frusto-eonieal valve having a plurality of coaxial seating rings, a valve seat within which said valve is arranged to seat and with said rings alone in contact with said seat, a float within said valve adapted to support the same upon the water and having fluid tight connection therewith, and means connected to said fioat and arranged to support said valve in axial relation to the seat and to permit said valve to seat therein through the action of gravity upon the valve when the water is discharged.

In testimony whereof I afiix mysignature.

JACOB S. KATZIN. 

